MoodTools
Verified working Sep 23, 2026
A free mobile toolkit for depression screening and CBT-style mood support.
MoodTools is a smartphone app offering self-help tools for people dealing with low mood or depression. It includes a PHQ-9 depression questionnaire with symptom tracking, a cognitive-therapy-style thought diary, and a suicide safety plan with emergency resources.
Why it stands out
- Uses the PHQ-9, a widely used depression screening questionnaire, rather than a casual mood quiz.
- Combines day-to-day CBT-style reflection with crisis-oriented safety planning in one app.
- Designed as a no-cost smartphone tool, making it more accessible than many subscription-based mental health apps.
- Focuses specifically on depression and negative mood rather than trying to cover every wellness topic.
Good to know
- The app explicitly states that it is not a replacement for treatment or medical intervention.
- Its scope is centered on depression and negative moods, so it may not fit users seeking broader mental health support.
- Crisis tools can help with planning, but they are not a substitute for emergency services during immediate danger.
- The described product is a smartphone app, not a full web-based therapy platform.
Under the radar: Complete the safety plan during a calmer moment rather than waiting until a crisis, so the emergency resources and coping steps are already ready when they are hardest to think through.
Photos

People monitoring depressive symptoms can use the PHQ-9 tracker and self-help exercises between professional support sessions. Check symptom severity over time to notice changes in mood patterns. Work through negative or distorted thoughts using a structured diary format. Create a personal safety plan before a suicidal crisis occurs. Keep emergency mental health resources accessible on a phone.
PHQ-9 depression test with longitudinal tracking; thought diary based on cognitive therapy principles; suicide safety plan; emergency resource access; free iOS and Android app support information.
Alternative listings
UK-focused health guides, symptom tools, and medicine information.
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Similar sites elsewhere
- Sanvello — sanvello.com
- Woebot — woebothealth.com
- MindShift CBT — anxietycanada.com/resources/mindshift-cbt
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